ICD-10-CM Tabular Index · Chapter 19 · FY 2026 S66

Injury of muscle, fascia and tendon at wrist and hand level (S66) ICD-10-CM

The S66 code range covers injury of muscle, fascia and tendon at wrist and hand level with 761 ICD-10-CM diagnosis codes. 540 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
761
Diagnosis Codes
540
Billable Codes
S66
Code Range
S60–S69
Parent Section

Code Also

A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.

Type 2 Excludes

A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

7th Character Note

Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.

7th Character

Indicates that a seventh character is to be assigned to codes in a subcategory.

ICD-10-CM

Codes in the S66 Range 761 codes · 540 billable

761 of 761 shown
  • S66 Injury of muscle, fascia and tendon at wrist and hand levelNon-billable
  • S66.0 Injury of long flexor muscle, fascia and tendon of thumb at wrist and hand levelNon-billable
  • S66.00 Unspecified injury of long flexor muscle, fascia and tendon of thumb at wrist and hand levelNon-billable
  • S66.001 Unspecified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand levelNon-billable
  • S66.001A Unspecified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter
  • S66.001D Unspecified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter
  • S66.001S Unspecified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, sequela
  • S66.002 Unspecified injury of long flexor muscle, fascia and tendon of left thumb at wrist and hand levelNon-billable
  • S66.002A Unspecified injury of long flexor muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter
  • S66.002D Unspecified injury of long flexor muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter
  • S66.002S Unspecified injury of long flexor muscle, fascia and tendon of left thumb at wrist and hand level, sequela
  • S66.009 Unspecified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand levelNon-billable
  • S66.009A Unspecified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter
  • S66.009D Unspecified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level, subsequent encounter
  • S66.009S Unspecified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level, sequela
  • S66.01 Strain of long flexor muscle, fascia and tendon of thumb at wrist and hand levelNon-billable
  • S66.011 Strain of long flexor muscle, fascia and tendon of right thumb at wrist and hand levelNon-billable
  • S66.011A Strain of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter
  • S66.011D Strain of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter
  • S66.011S Strain of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, sequela
  • S66.012 Strain of long flexor muscle, fascia and tendon of left thumb at wrist and hand levelNon-billable
  • S66.012A Strain of long flexor muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter
  • S66.012D Strain of long flexor muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter
  • S66.012S Strain of long flexor muscle, fascia and tendon of left thumb at wrist and hand level, sequela
  • S66.019 Strain of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand levelNon-billable
  • S66.019A Strain of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter
  • S66.019D Strain of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level, subsequent encounter
  • S66.019S Strain of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level, sequela
  • S66.02 Laceration of long flexor muscle, fascia and tendon of thumb at wrist and hand levelNon-billable
  • S66.021 Laceration of long flexor muscle, fascia and tendon of right thumb at wrist and hand levelNon-billable
  • S66.021A Laceration of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter
  • S66.021D Laceration of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter
  • S66.021S Laceration of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, sequela
  • S66.022 Laceration of long flexor muscle, fascia and tendon of left thumb at wrist and hand levelNon-billable
  • S66.022A Laceration of long flexor muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter
  • S66.022D Laceration of long flexor muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter
  • S66.022S Laceration of long flexor muscle, fascia and tendon of left thumb at wrist and hand level, sequela
  • S66.029 Laceration of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand levelNon-billable
  • S66.029A Laceration of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter
  • S66.029D Laceration of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level, subsequent encounter
  • S66.029S Laceration of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level, sequela
  • S66.09 Other specified injury of long flexor muscle, fascia and tendon of thumb at wrist and hand levelNon-billable
  • S66.091 Other specified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand levelNon-billable
  • S66.091A Other specified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter
  • S66.091D Other specified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter
  • S66.091S Other specified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, sequela
  • S66.092 Other specified injury of long flexor muscle, fascia and tendon of left thumb at wrist and hand levelNon-billable
  • S66.092A Other specified injury of long flexor muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter
  • S66.092D Other specified injury of long flexor muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter
  • S66.092S Other specified injury of long flexor muscle, fascia and tendon of left thumb at wrist and hand level, sequela
  • S66.099 Other specified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand levelNon-billable
  • S66.099A Other specified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter
  • S66.099D Other specified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level, subsequent encounter
  • S66.099S Other specified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level, sequela
  • S66.1 Injury of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelNon-billable
  • S66.10 Unspecified injury of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelNon-billable
  • S66.100 Unspecified injury of flexor muscle, fascia and tendon of right index finger at wrist and hand levelNon-billable
  • S66.100A Unspecified injury of flexor muscle, fascia and tendon of right index finger at wrist and hand level, initial encounter
  • S66.100D Unspecified injury of flexor muscle, fascia and tendon of right index finger at wrist and hand level, subsequent encounter
  • S66.100S Unspecified injury of flexor muscle, fascia and tendon of right index finger at wrist and hand level, sequela
  • S66.101 Unspecified injury of flexor muscle, fascia and tendon of left index finger at wrist and hand levelNon-billable
  • S66.101A Unspecified injury of flexor muscle, fascia and tendon of left index finger at wrist and hand level, initial encounter
  • S66.101D Unspecified injury of flexor muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter
  • S66.101S Unspecified injury of flexor muscle, fascia and tendon of left index finger at wrist and hand level, sequela
  • S66.102 Unspecified injury of flexor muscle, fascia and tendon of right middle finger at wrist and hand levelNon-billable
  • S66.102A Unspecified injury of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, initial encounter
  • S66.102D Unspecified injury of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, subsequent encounter
  • S66.102S Unspecified injury of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, sequela
  • S66.103 Unspecified injury of flexor muscle, fascia and tendon of left middle finger at wrist and hand levelNon-billable
  • S66.103A Unspecified injury of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, initial encounter
  • S66.103D Unspecified injury of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, subsequent encounter
  • S66.103S Unspecified injury of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, sequela
  • S66.104 Unspecified injury of flexor muscle, fascia and tendon of right ring finger at wrist and hand levelNon-billable
  • S66.104A Unspecified injury of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, initial encounter
  • S66.104D Unspecified injury of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, subsequent encounter
  • S66.104S Unspecified injury of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, sequela
  • S66.105 Unspecified injury of flexor muscle, fascia and tendon of left ring finger at wrist and hand levelNon-billable
  • S66.105A Unspecified injury of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, initial encounter
  • S66.105D Unspecified injury of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, subsequent encounter
  • S66.105S Unspecified injury of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, sequela
  • S66.106 Unspecified injury of flexor muscle, fascia and tendon of right little finger at wrist and hand levelNon-billable
  • S66.106A Unspecified injury of flexor muscle, fascia and tendon of right little finger at wrist and hand level, initial encounter
  • S66.106D Unspecified injury of flexor muscle, fascia and tendon of right little finger at wrist and hand level, subsequent encounter
  • S66.106S Unspecified injury of flexor muscle, fascia and tendon of right little finger at wrist and hand level, sequela
  • S66.107 Unspecified injury of flexor muscle, fascia and tendon of left little finger at wrist and hand levelNon-billable
  • S66.107A Unspecified injury of flexor muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter
  • S66.107D Unspecified injury of flexor muscle, fascia and tendon of left little finger at wrist and hand level, subsequent encounter
  • S66.107S Unspecified injury of flexor muscle, fascia and tendon of left little finger at wrist and hand level, sequela
  • S66.108 Unspecified injury of flexor muscle, fascia and tendon of other finger at wrist and hand levelNon-billable
  • S66.108A Unspecified injury of flexor muscle, fascia and tendon of other finger at wrist and hand level, initial encounter
  • S66.108D Unspecified injury of flexor muscle, fascia and tendon of other finger at wrist and hand level, subsequent encounter
  • S66.108S Unspecified injury of flexor muscle, fascia and tendon of other finger at wrist and hand level, sequela
  • S66.109 Unspecified injury of flexor muscle, fascia and tendon of unspecified finger at wrist and hand levelNon-billable
  • S66.109A Unspecified injury of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounter
  • S66.109D Unspecified injury of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounter
  • S66.109S Unspecified injury of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela
  • S66.11 Strain of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelNon-billable
  • S66.110 Strain of flexor muscle, fascia and tendon of right index finger at wrist and hand levelNon-billable
  • S66.110A Strain of flexor muscle, fascia and tendon of right index finger at wrist and hand level, initial encounter
  • S66.110D Strain of flexor muscle, fascia and tendon of right index finger at wrist and hand level, subsequent encounter
  • S66.110S Strain of flexor muscle, fascia and tendon of right index finger at wrist and hand level, sequela
  • S66.111 Strain of flexor muscle, fascia and tendon of left index finger at wrist and hand levelNon-billable
  • S66.111A Strain of flexor muscle, fascia and tendon of left index finger at wrist and hand level, initial encounter
  • S66.111D Strain of flexor muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter
  • S66.111S Strain of flexor muscle, fascia and tendon of left index finger at wrist and hand level, sequela
  • S66.112 Strain of flexor muscle, fascia and tendon of right middle finger at wrist and hand levelNon-billable
  • S66.112A Strain of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, initial encounter
  • S66.112D Strain of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, subsequent encounter
  • S66.112S Strain of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, sequela
  • S66.113 Strain of flexor muscle, fascia and tendon of left middle finger at wrist and hand levelNon-billable
  • S66.113A Strain of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, initial encounter
  • S66.113D Strain of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, subsequent encounter
  • S66.113S Strain of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, sequela
  • S66.114 Strain of flexor muscle, fascia and tendon of right ring finger at wrist and hand levelNon-billable
  • S66.114A Strain of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, initial encounter
  • S66.114D Strain of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, subsequent encounter
  • S66.114S Strain of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, sequela
  • S66.115 Strain of flexor muscle, fascia and tendon of left ring finger at wrist and hand levelNon-billable
  • S66.115A Strain of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, initial encounter
  • S66.115D Strain of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, subsequent encounter
  • S66.115S Strain of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, sequela
  • S66.116 Strain of flexor muscle, fascia and tendon of right little finger at wrist and hand levelNon-billable
  • S66.116A Strain of flexor muscle, fascia and tendon of right little finger at wrist and hand level, initial encounter
  • S66.116D Strain of flexor muscle, fascia and tendon of right little finger at wrist and hand level, subsequent encounter
  • S66.116S Strain of flexor muscle, fascia and tendon of right little finger at wrist and hand level, sequela
  • S66.117 Strain of flexor muscle, fascia and tendon of left little finger at wrist and hand levelNon-billable
  • S66.117A Strain of flexor muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter
  • S66.117D Strain of flexor muscle, fascia and tendon of left little finger at wrist and hand level, subsequent encounter
  • S66.117S Strain of flexor muscle, fascia and tendon of left little finger at wrist and hand level, sequela
  • S66.118 Strain of flexor muscle, fascia and tendon of other finger at wrist and hand levelNon-billable
  • S66.118A Strain of flexor muscle, fascia and tendon of other finger at wrist and hand level, initial encounter
  • S66.118D Strain of flexor muscle, fascia and tendon of other finger at wrist and hand level, subsequent encounter
  • S66.118S Strain of flexor muscle, fascia and tendon of other finger at wrist and hand level, sequela
  • S66.119 Strain of flexor muscle, fascia and tendon of unspecified finger at wrist and hand levelNon-billable
  • S66.119A Strain of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounter
  • S66.119D Strain of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounter
  • S66.119S Strain of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela
  • S66.12 Laceration of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelNon-billable
  • S66.120 Laceration of flexor muscle, fascia and tendon of right index finger at wrist and hand levelNon-billable
  • S66.120A Laceration of flexor muscle, fascia and tendon of right index finger at wrist and hand level, initial encounter
  • S66.120D Laceration of flexor muscle, fascia and tendon of right index finger at wrist and hand level, subsequent encounter
  • S66.120S Laceration of flexor muscle, fascia and tendon of right index finger at wrist and hand level, sequela
  • S66.121 Laceration of flexor muscle, fascia and tendon of left index finger at wrist and hand levelNon-billable
  • S66.121A Laceration of flexor muscle, fascia and tendon of left index finger at wrist and hand level, initial encounter
  • S66.121D Laceration of flexor muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter
  • S66.121S Laceration of flexor muscle, fascia and tendon of left index finger at wrist and hand level, sequela
  • S66.122 Laceration of flexor muscle, fascia and tendon of right middle finger at wrist and hand levelNon-billable
  • S66.122A Laceration of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, initial encounter
  • S66.122D Laceration of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, subsequent encounter
  • S66.122S Laceration of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, sequela
  • S66.123 Laceration of flexor muscle, fascia and tendon of left middle finger at wrist and hand levelNon-billable
  • S66.123A Laceration of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, initial encounter
  • S66.123D Laceration of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, subsequent encounter
  • S66.123S Laceration of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, sequela
  • S66.124 Laceration of flexor muscle, fascia and tendon of right ring finger at wrist and hand levelNon-billable
  • S66.124A Laceration of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, initial encounter
  • S66.124D Laceration of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, subsequent encounter
  • S66.124S Laceration of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, sequela
  • S66.125 Laceration of flexor muscle, fascia and tendon of left ring finger at wrist and hand levelNon-billable
  • S66.125A Laceration of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, initial encounter
  • S66.125D Laceration of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, subsequent encounter
  • S66.125S Laceration of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, sequela
  • S66.126 Laceration of flexor muscle, fascia and tendon of right little finger at wrist and hand levelNon-billable
  • S66.126A Laceration of flexor muscle, fascia and tendon of right little finger at wrist and hand level, initial encounter
  • S66.126D Laceration of flexor muscle, fascia and tendon of right little finger at wrist and hand level, subsequent encounter
  • S66.126S Laceration of flexor muscle, fascia and tendon of right little finger at wrist and hand level, sequela
  • S66.127 Laceration of flexor muscle, fascia and tendon of left little finger at wrist and hand levelNon-billable
  • S66.127A Laceration of flexor muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter
  • S66.127D Laceration of flexor muscle, fascia and tendon of left little finger at wrist and hand level, subsequent encounter
  • S66.127S Laceration of flexor muscle, fascia and tendon of left little finger at wrist and hand level, sequela
  • S66.128 Laceration of flexor muscle, fascia and tendon of other finger at wrist and hand levelNon-billable
  • S66.128A Laceration of flexor muscle, fascia and tendon of other finger at wrist and hand level, initial encounter
  • S66.128D Laceration of flexor muscle, fascia and tendon of other finger at wrist and hand level, subsequent encounter
  • S66.128S Laceration of flexor muscle, fascia and tendon of other finger at wrist and hand level, sequela
  • S66.129 Laceration of flexor muscle, fascia and tendon of unspecified finger at wrist and hand levelNon-billable
  • S66.129A Laceration of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounter
  • S66.129D Laceration of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounter
  • S66.129S Laceration of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela
  • S66.19 Other injury of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelNon-billable
  • S66.190 Other injury of flexor muscle, fascia and tendon of right index finger at wrist and hand levelNon-billable
  • S66.190A Other injury of flexor muscle, fascia and tendon of right index finger at wrist and hand level, initial encounter
  • S66.190D Other injury of flexor muscle, fascia and tendon of right index finger at wrist and hand level, subsequent encounter
  • S66.190S Other injury of flexor muscle, fascia and tendon of right index finger at wrist and hand level, sequela
  • S66.191 Other injury of flexor muscle, fascia and tendon of left index finger at wrist and hand levelNon-billable
  • S66.191A Other injury of flexor muscle, fascia and tendon of left index finger at wrist and hand level, initial encounter
  • S66.191D Other injury of flexor muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter
  • S66.191S Other injury of flexor muscle, fascia and tendon of left index finger at wrist and hand level, sequela
  • S66.192 Other injury of flexor muscle, fascia and tendon of right middle finger at wrist and hand levelNon-billable
  • S66.192A Other injury of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, initial encounter
  • S66.192D Other injury of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, subsequent encounter
  • S66.192S Other injury of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, sequela
  • S66.193 Other injury of flexor muscle, fascia and tendon of left middle finger at wrist and hand levelNon-billable
  • S66.193A Other injury of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, initial encounter
  • S66.193D Other injury of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, subsequent encounter
  • S66.193S Other injury of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, sequela
  • S66.194 Other injury of flexor muscle, fascia and tendon of right ring finger at wrist and hand levelNon-billable
  • S66.194A Other injury of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, initial encounter
  • S66.194D Other injury of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, subsequent encounter
  • S66.194S Other injury of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, sequela
  • S66.195 Other injury of flexor muscle, fascia and tendon of left ring finger at wrist and hand levelNon-billable
  • S66.195A Other injury of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, initial encounter
  • S66.195D Other injury of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, subsequent encounter
  • S66.195S Other injury of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, sequela
  • S66.196 Other injury of flexor muscle, fascia and tendon of right little finger at wrist and hand levelNon-billable
  • S66.196A Other injury of flexor muscle, fascia and tendon of right little finger at wrist and hand level, initial encounter
  • S66.196D Other injury of flexor muscle, fascia and tendon of right little finger at wrist and hand level, subsequent encounter
  • S66.196S Other injury of flexor muscle, fascia and tendon of right little finger at wrist and hand level, sequela
  • S66.197 Other injury of flexor muscle, fascia and tendon of left little finger at wrist and hand levelNon-billable
  • S66.197A Other injury of flexor muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter
  • S66.197D Other injury of flexor muscle, fascia and tendon of left little finger at wrist and hand level, subsequent encounter
  • S66.197S Other injury of flexor muscle, fascia and tendon of left little finger at wrist and hand level, sequela
  • S66.198 Other injury of flexor muscle, fascia and tendon of other finger at wrist and hand levelNon-billable
  • S66.198A Other injury of flexor muscle, fascia and tendon of other finger at wrist and hand level, initial encounter
  • S66.198D Other injury of flexor muscle, fascia and tendon of other finger at wrist and hand level, subsequent encounter
  • S66.198S Other injury of flexor muscle, fascia and tendon of other finger at wrist and hand level, sequela
  • S66.199 Other injury of flexor muscle, fascia and tendon of unspecified finger at wrist and hand levelNon-billable
  • S66.199A Other injury of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounter
  • S66.199D Other injury of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounter
  • S66.199S Other injury of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela
  • S66.2 Injury of extensor muscle, fascia and tendon of thumb at wrist and hand levelNon-billable
  • S66.20 Unspecified injury of extensor muscle, fascia and tendon of thumb at wrist and hand levelNon-billable
  • S66.201 Unspecified injury of extensor muscle, fascia and tendon of right thumb at wrist and hand levelNon-billable
  • S66.201A Unspecified injury of extensor muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter
  • S66.201D Unspecified injury of extensor muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter
  • S66.201S Unspecified injury of extensor muscle, fascia and tendon of right thumb at wrist and hand level, sequela
  • S66.202 Unspecified injury of extensor muscle, fascia and tendon of left thumb at wrist and hand levelNon-billable
  • S66.202A Unspecified injury of extensor muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter
  • S66.202D Unspecified injury of extensor muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter
  • S66.202S Unspecified injury of extensor muscle, fascia and tendon of left thumb at wrist and hand level, sequela
  • S66.209 Unspecified injury of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand levelNon-billable
  • S66.209A Unspecified injury of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter
  • S66.209D Unspecified injury of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level, subsequent encounter
  • S66.209S Unspecified injury of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level, sequela
  • S66.21 Strain of extensor muscle, fascia and tendon of thumb at wrist and hand levelNon-billable
  • S66.211 Strain of extensor muscle, fascia and tendon of right thumb at wrist and hand levelNon-billable
  • S66.211A Strain of extensor muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter
  • S66.211D Strain of extensor muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter
  • S66.211S Strain of extensor muscle, fascia and tendon of right thumb at wrist and hand level, sequela
  • S66.212 Strain of extensor muscle, fascia and tendon of left thumb at wrist and hand levelNon-billable
  • S66.212A Strain of extensor muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter
  • S66.212D Strain of extensor muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter
  • S66.212S Strain of extensor muscle, fascia and tendon of left thumb at wrist and hand level, sequela
  • S66.219 Strain of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand levelNon-billable
  • S66.219A Strain of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter
  • S66.219D Strain of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level, subsequent encounter
  • S66.219S Strain of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level, sequela
  • S66.22 Laceration of extensor muscle, fascia and tendon of thumb at wrist and hand levelNon-billable
  • S66.221 Laceration of extensor muscle, fascia and tendon of right thumb at wrist and hand levelNon-billable
  • S66.221A Laceration of extensor muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter
  • S66.221D Laceration of extensor muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter
  • S66.221S Laceration of extensor muscle, fascia and tendon of right thumb at wrist and hand level, sequela
  • S66.222 Laceration of extensor muscle, fascia and tendon of left thumb at wrist and hand levelNon-billable
  • S66.222A Laceration of extensor muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter
  • S66.222D Laceration of extensor muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter
  • S66.222S Laceration of extensor muscle, fascia and tendon of left thumb at wrist and hand level, sequela
  • S66.229 Laceration of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand levelNon-billable
  • S66.229A Laceration of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter
  • S66.229D Laceration of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level, subsequent encounter
  • S66.229S Laceration of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level, sequela
  • S66.29 Other specified injury of extensor muscle, fascia and tendon of thumb at wrist and hand levelNon-billable
  • S66.291 Other specified injury of extensor muscle, fascia and tendon of right thumb at wrist and hand levelNon-billable
  • S66.291A Other specified injury of extensor muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter
  • S66.291D Other specified injury of extensor muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter
  • S66.291S Other specified injury of extensor muscle, fascia and tendon of right thumb at wrist and hand level, sequela
  • S66.292 Other specified injury of extensor muscle, fascia and tendon of left thumb at wrist and hand levelNon-billable
  • S66.292A Other specified injury of extensor muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter
  • S66.292D Other specified injury of extensor muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter
  • S66.292S Other specified injury of extensor muscle, fascia and tendon of left thumb at wrist and hand level, sequela
  • S66.299 Other specified injury of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand levelNon-billable
  • S66.299A Other specified injury of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter
  • S66.299D Other specified injury of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level, subsequent encounter
  • S66.299S Other specified injury of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level, sequela
  • S66.3 Injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelNon-billable
  • S66.30 Unspecified injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelNon-billable
  • S66.300 Unspecified injury of extensor muscle, fascia and tendon of right index finger at wrist and hand levelNon-billable
  • S66.300A Unspecified injury of extensor muscle, fascia and tendon of right index finger at wrist and hand level, initial encounter
  • S66.300D Unspecified injury of extensor muscle, fascia and tendon of right index finger at wrist and hand level, subsequent encounter
  • S66.300S Unspecified injury of extensor muscle, fascia and tendon of right index finger at wrist and hand level, sequela
  • S66.301 Unspecified injury of extensor muscle, fascia and tendon of left index finger at wrist and hand levelNon-billable
  • S66.301A Unspecified injury of extensor muscle, fascia and tendon of left index finger at wrist and hand level, initial encounter
  • S66.301D Unspecified injury of extensor muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter
  • S66.301S Unspecified injury of extensor muscle, fascia and tendon of left index finger at wrist and hand level, sequela
  • S66.302 Unspecified injury of extensor muscle, fascia and tendon of right middle finger at wrist and hand levelNon-billable
  • S66.302A Unspecified injury of extensor muscle, fascia and tendon of right middle finger at wrist and hand level, initial encounter
  • S66.302D Unspecified injury of extensor muscle, fascia and tendon of right middle finger at wrist and hand level, subsequent encounter
  • S66.302S Unspecified injury of extensor muscle, fascia and tendon of right middle finger at wrist and hand level, sequela
  • S66.303 Unspecified injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand levelNon-billable
  • S66.303A Unspecified injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level, initial encounter
  • S66.303D Unspecified injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level, subsequent encounter
  • S66.303S Unspecified injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level, sequela
  • S66.304 Unspecified injury of extensor muscle, fascia and tendon of right ring finger at wrist and hand levelNon-billable
  • S66.304A Unspecified injury of extensor muscle, fascia and tendon of right ring finger at wrist and hand level, initial encounter
  • S66.304D Unspecified injury of extensor muscle, fascia and tendon of right ring finger at wrist and hand level, subsequent encounter
  • S66.304S Unspecified injury of extensor muscle, fascia and tendon of right ring finger at wrist and hand level, sequela
  • S66.305 Unspecified injury of extensor muscle, fascia and tendon of left ring finger at wrist and hand levelNon-billable
  • S66.305A Unspecified injury of extensor muscle, fascia and tendon of left ring finger at wrist and hand level, initial encounter
  • S66.305D Unspecified injury of extensor muscle, fascia and tendon of left ring finger at wrist and hand level, subsequent encounter
  • S66.305S Unspecified injury of extensor muscle, fascia and tendon of left ring finger at wrist and hand level, sequela
  • S66.306 Unspecified injury of extensor muscle, fascia and tendon of right little finger at wrist and hand levelNon-billable
  • S66.306A Unspecified injury of extensor muscle, fascia and tendon of right little finger at wrist and hand level, initial encounter
  • S66.306D Unspecified injury of extensor muscle, fascia and tendon of right little finger at wrist and hand level, subsequent encounter
  • S66.306S Unspecified injury of extensor muscle, fascia and tendon of right little finger at wrist and hand level, sequela
  • S66.307 Unspecified injury of extensor muscle, fascia and tendon of left little finger at wrist and hand levelNon-billable
  • S66.307A Unspecified injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter
  • S66.307D Unspecified injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level, subsequent encounter
  • S66.307S Unspecified injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level, sequela
  • S66.308 Unspecified injury of extensor muscle, fascia and tendon of other finger at wrist and hand levelNon-billable
  • S66.308A Unspecified injury of extensor muscle, fascia and tendon of other finger at wrist and hand level, initial encounter
  • S66.308D Unspecified injury of extensor muscle, fascia and tendon of other finger at wrist and hand level, subsequent encounter
  • S66.308S Unspecified injury of extensor muscle, fascia and tendon of other finger at wrist and hand level, sequela
  • S66.309 Unspecified injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand levelNon-billable
  • S66.309A Unspecified injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounter
  • S66.309D Unspecified injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounter
  • S66.309S Unspecified injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela
  • S66.31 Strain of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelNon-billable
  • S66.310 Strain of extensor muscle, fascia and tendon of right index finger at wrist and hand levelNon-billable
  • S66.310A Strain of extensor muscle, fascia and tendon of right index finger at wrist and hand level, initial encounter
  • S66.310D Strain of extensor muscle, fascia and tendon of right index finger at wrist and hand level, subsequent encounter
  • S66.310S Strain of extensor muscle, fascia and tendon of right index finger at wrist and hand level, sequela
  • S66.311 Strain of extensor muscle, fascia and tendon of left index finger at wrist and hand levelNon-billable
  • S66.311A Strain of extensor muscle, fascia and tendon of left index finger at wrist and hand level, initial encounter
  • S66.311D Strain of extensor muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter
  • S66.311S Strain of extensor muscle, fascia and tendon of left index finger at wrist and hand level, sequela
  • S66.312 Strain of extensor muscle, fascia and tendon of right middle finger at wrist and hand levelNon-billable
  • S66.312A Strain of extensor muscle, fascia and tendon of right middle finger at wrist and hand level, initial encounter
  • S66.312D Strain of extensor muscle, fascia and tendon of right middle finger at wrist and hand level, subsequent encounter
  • S66.312S Strain of extensor muscle, fascia and tendon of right middle finger at wrist and hand level, sequela
  • S66.313 Strain of extensor muscle, fascia and tendon of left middle finger at wrist and hand levelNon-billable
  • S66.313A Strain of extensor muscle, fascia and tendon of left middle finger at wrist and hand level, initial encounter
  • S66.313D Strain of extensor muscle, fascia and tendon of left middle finger at wrist and hand level, subsequent encounter
  • S66.313S Strain of extensor muscle, fascia and tendon of left middle finger at wrist and hand level, sequela
  • S66.314 Strain of extensor muscle, fascia and tendon of right ring finger at wrist and hand levelNon-billable
  • S66.314A Strain of extensor muscle, fascia and tendon of right ring finger at wrist and hand level, initial encounter
  • S66.314D Strain of extensor muscle, fascia and tendon of right ring finger at wrist and hand level, subsequent encounter
  • S66.314S Strain of extensor muscle, fascia and tendon of right ring finger at wrist and hand level, sequela
  • S66.315 Strain of extensor muscle, fascia and tendon of left ring finger at wrist and hand levelNon-billable
  • S66.315A Strain of extensor muscle, fascia and tendon of left ring finger at wrist and hand level, initial encounter
  • S66.315D Strain of extensor muscle, fascia and tendon of left ring finger at wrist and hand level, subsequent encounter
  • S66.315S Strain of extensor muscle, fascia and tendon of left ring finger at wrist and hand level, sequela
  • S66.316 Strain of extensor muscle, fascia and tendon of right little finger at wrist and hand levelNon-billable
  • S66.316A Strain of extensor muscle, fascia and tendon of right little finger at wrist and hand level, initial encounter
  • S66.316D Strain of extensor muscle, fascia and tendon of right little finger at wrist and hand level, subsequent encounter
  • S66.316S Strain of extensor muscle, fascia and tendon of right little finger at wrist and hand level, sequela
  • S66.317 Strain of extensor muscle, fascia and tendon of left little finger at wrist and hand levelNon-billable
  • S66.317A Strain of extensor muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter
  • S66.317D Strain of extensor muscle, fascia and tendon of left little finger at wrist and hand level, subsequent encounter
  • S66.317S Strain of extensor muscle, fascia and tendon of left little finger at wrist and hand level, sequela
  • S66.318 Strain of extensor muscle, fascia and tendon of other finger at wrist and hand levelNon-billable
  • S66.318A Strain of extensor muscle, fascia and tendon of other finger at wrist and hand level, initial encounter
  • S66.318D Strain of extensor muscle, fascia and tendon of other finger at wrist and hand level, subsequent encounter
  • S66.318S Strain of extensor muscle, fascia and tendon of other finger at wrist and hand level, sequela
  • S66.319 Strain of extensor muscle, fascia and tendon of unspecified finger at wrist and hand levelNon-billable
  • S66.319A Strain of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounter
  • S66.319D Strain of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounter
  • S66.319S Strain of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela
  • S66.32 Laceration of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelNon-billable
  • S66.320 Laceration of extensor muscle, fascia and tendon of right index finger at wrist and hand levelNon-billable
  • S66.320A Laceration of extensor muscle, fascia and tendon of right index finger at wrist and hand level, initial encounter
  • S66.320D Laceration of extensor muscle, fascia and tendon of right index finger at wrist and hand level, subsequent encounter
  • S66.320S Laceration of extensor muscle, fascia and tendon of right index finger at wrist and hand level, sequela
  • S66.321 Laceration of extensor muscle, fascia and tendon of left index finger at wrist and hand levelNon-billable
  • S66.321A Laceration of extensor muscle, fascia and tendon of left index finger at wrist and hand level, initial encounter
  • S66.321D Laceration of extensor muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter
  • S66.321S Laceration of extensor muscle, fascia and tendon of left index finger at wrist and hand level, sequela
  • S66.322 Laceration of extensor muscle, fascia and tendon of right middle finger at wrist and hand levelNon-billable
  • S66.322A Laceration of extensor muscle, fascia and tendon of right middle finger at wrist and hand level, initial encounter
  • S66.322D Laceration of extensor muscle, fascia and tendon of right middle finger at wrist and hand level, subsequent encounter
  • S66.322S Laceration of extensor muscle, fascia and tendon of right middle finger at wrist and hand level, sequela
  • S66.323 Laceration of extensor muscle, fascia and tendon of left middle finger at wrist and hand levelNon-billable
  • S66.323A Laceration of extensor muscle, fascia and tendon of left middle finger at wrist and hand level, initial encounter
  • S66.323D Laceration of extensor muscle, fascia and tendon of left middle finger at wrist and hand level, subsequent encounter
  • S66.323S Laceration of extensor muscle, fascia and tendon of left middle finger at wrist and hand level, sequela
  • S66.324 Laceration of extensor muscle, fascia and tendon of right ring finger at wrist and hand levelNon-billable
  • S66.324A Laceration of extensor muscle, fascia and tendon of right ring finger at wrist and hand level, initial encounter
  • S66.324D Laceration of extensor muscle, fascia and tendon of right ring finger at wrist and hand level, subsequent encounter
  • S66.324S Laceration of extensor muscle, fascia and tendon of right ring finger at wrist and hand level, sequela
  • S66.325 Laceration of extensor muscle, fascia and tendon of left ring finger at wrist and hand levelNon-billable
  • S66.325A Laceration of extensor muscle, fascia and tendon of left ring finger at wrist and hand level, initial encounter
  • S66.325D Laceration of extensor muscle, fascia and tendon of left ring finger at wrist and hand level, subsequent encounter
  • S66.325S Laceration of extensor muscle, fascia and tendon of left ring finger at wrist and hand level, sequela
  • S66.326 Laceration of extensor muscle, fascia and tendon of right little finger at wrist and hand levelNon-billable
  • S66.326A Laceration of extensor muscle, fascia and tendon of right little finger at wrist and hand level, initial encounter
  • S66.326D Laceration of extensor muscle, fascia and tendon of right little finger at wrist and hand level, subsequent encounter
  • S66.326S Laceration of extensor muscle, fascia and tendon of right little finger at wrist and hand level, sequela
  • S66.327 Laceration of extensor muscle, fascia and tendon of left little finger at wrist and hand levelNon-billable
  • S66.327A Laceration of extensor muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter
  • S66.327D Laceration of extensor muscle, fascia and tendon of left little finger at wrist and hand level, subsequent encounter
  • S66.327S Laceration of extensor muscle, fascia and tendon of left little finger at wrist and hand level, sequela
  • S66.328 Laceration of extensor muscle, fascia and tendon of other finger at wrist and hand levelNon-billable
  • S66.328A Laceration of extensor muscle, fascia and tendon of other finger at wrist and hand level, initial encounter
  • S66.328D Laceration of extensor muscle, fascia and tendon of other finger at wrist and hand level, subsequent encounter
  • S66.328S Laceration of extensor muscle, fascia and tendon of other finger at wrist and hand level, sequela
  • S66.329 Laceration of extensor muscle, fascia and tendon of unspecified finger at wrist and hand levelNon-billable
  • S66.329A Laceration of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounter
  • S66.329D Laceration of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounter
  • S66.329S Laceration of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela
  • S66.39 Other injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelNon-billable
  • S66.390 Other injury of extensor muscle, fascia and tendon of right index finger at wrist and hand levelNon-billable
  • S66.390A Other injury of extensor muscle, fascia and tendon of right index finger at wrist and hand level, initial encounter
  • S66.390D Other injury of extensor muscle, fascia and tendon of right index finger at wrist and hand level, subsequent encounter
  • S66.390S Other injury of extensor muscle, fascia and tendon of right index finger at wrist and hand level, sequela
  • S66.391 Other injury of extensor muscle, fascia and tendon of left index finger at wrist and hand levelNon-billable
  • S66.391A Other injury of extensor muscle, fascia and tendon of left index finger at wrist and hand level, initial encounter
  • S66.391D Other injury of extensor muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter
  • S66.391S Other injury of extensor muscle, fascia and tendon of left index finger at wrist and hand level, sequela
  • S66.392 Other injury of extensor muscle, fascia and tendon of right middle finger at wrist and hand levelNon-billable
  • S66.392A Other injury of extensor muscle, fascia and tendon of right middle finger at wrist and hand level, initial encounter
  • S66.392D Other injury of extensor muscle, fascia and tendon of right middle finger at wrist and hand level, subsequent encounter
  • S66.392S Other injury of extensor muscle, fascia and tendon of right middle finger at wrist and hand level, sequela
  • S66.393 Other injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand levelNon-billable
  • S66.393A Other injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level, initial encounter
  • S66.393D Other injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level, subsequent encounter
  • S66.393S Other injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level, sequela
  • S66.394 Other injury of extensor muscle, fascia and tendon of right ring finger at wrist and hand levelNon-billable
  • S66.394A Other injury of extensor muscle, fascia and tendon of right ring finger at wrist and hand level, initial encounter
  • S66.394D Other injury of extensor muscle, fascia and tendon of right ring finger at wrist and hand level, subsequent encounter
  • S66.394S Other injury of extensor muscle, fascia and tendon of right ring finger at wrist and hand level, sequela
  • S66.395 Other injury of extensor muscle, fascia and tendon of left ring finger at wrist and hand levelNon-billable
  • S66.395A Other injury of extensor muscle, fascia and tendon of left ring finger at wrist and hand level, initial encounter
  • S66.395D Other injury of extensor muscle, fascia and tendon of left ring finger at wrist and hand level, subsequent encounter
  • S66.395S Other injury of extensor muscle, fascia and tendon of left ring finger at wrist and hand level, sequela
  • S66.396 Other injury of extensor muscle, fascia and tendon of right little finger at wrist and hand levelNon-billable
  • S66.396A Other injury of extensor muscle, fascia and tendon of right little finger at wrist and hand level, initial encounter
  • S66.396D Other injury of extensor muscle, fascia and tendon of right little finger at wrist and hand level, subsequent encounter
  • S66.396S Other injury of extensor muscle, fascia and tendon of right little finger at wrist and hand level, sequela
  • S66.397 Other injury of extensor muscle, fascia and tendon of left little finger at wrist and hand levelNon-billable
  • S66.397A Other injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter
  • S66.397D Other injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level, subsequent encounter
  • S66.397S Other injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level, sequela
  • S66.398 Other injury of extensor muscle, fascia and tendon of other finger at wrist and hand levelNon-billable
  • S66.398A Other injury of extensor muscle, fascia and tendon of other finger at wrist and hand level, initial encounter
  • S66.398D Other injury of extensor muscle, fascia and tendon of other finger at wrist and hand level, subsequent encounter
  • S66.398S Other injury of extensor muscle, fascia and tendon of other finger at wrist and hand level, sequela
  • S66.399 Other injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand levelNon-billable
  • S66.399A Other injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounter
  • S66.399D Other injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounter
  • S66.399S Other injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela
  • S66.4 Injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand levelNon-billable
  • S66.40 Unspecified injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand levelNon-billable
  • S66.401 Unspecified injury of intrinsic muscle, fascia and tendon of right thumb at wrist and hand levelNon-billable
  • S66.401A Unspecified injury of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter
  • S66.401D Unspecified injury of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter
  • S66.401S Unspecified injury of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, sequela
  • S66.402 Unspecified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand levelNon-billable
  • S66.402A Unspecified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter
  • S66.402D Unspecified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter
  • S66.402S Unspecified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, sequela
  • S66.409 Unspecified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand levelNon-billable
  • S66.409A Unspecified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter
  • S66.409D Unspecified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, subsequent encounter
  • S66.409S Unspecified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, sequela
  • S66.41 Strain of intrinsic muscle, fascia and tendon of thumb at wrist and hand levelNon-billable
  • S66.411 Strain of intrinsic muscle, fascia and tendon of right thumb at wrist and hand levelNon-billable
  • S66.411A Strain of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter
  • S66.411D Strain of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter
  • S66.411S Strain of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, sequela
  • S66.412 Strain of intrinsic muscle, fascia and tendon of left thumb at wrist and hand levelNon-billable
  • S66.412A Strain of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter
  • S66.412D Strain of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter
  • S66.412S Strain of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, sequela
  • S66.419 Strain of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand levelNon-billable
  • S66.419A Strain of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter
  • S66.419D Strain of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, subsequent encounter
  • S66.419S Strain of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, sequela
  • S66.42 Laceration of intrinsic muscle, fascia and tendon of thumb at wrist and hand levelNon-billable
  • S66.421 Laceration of intrinsic muscle, fascia and tendon of right thumb at wrist and hand levelNon-billable
  • S66.421A Laceration of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter
  • S66.421D Laceration of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter
  • S66.421S Laceration of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, sequela
  • S66.422 Laceration of intrinsic muscle, fascia and tendon of left thumb at wrist and hand levelNon-billable
  • S66.422A Laceration of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter
  • S66.422D Laceration of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter
  • S66.422S Laceration of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, sequela
  • S66.429 Laceration of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand levelNon-billable
  • S66.429A Laceration of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter
  • S66.429D Laceration of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, subsequent encounter
  • S66.429S Laceration of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, sequela
  • S66.49 Other specified injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand levelNon-billable
  • S66.491 Other specified injury of intrinsic muscle, fascia and tendon of right thumb at wrist and hand levelNon-billable
  • S66.491A Other specified injury of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter
  • S66.491D Other specified injury of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter
  • S66.491S Other specified injury of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, sequela
  • S66.492 Other specified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand levelNon-billable
  • S66.492A Other specified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter
  • S66.492D Other specified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter
  • S66.492S Other specified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, sequela
  • S66.499 Other specified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand levelNon-billable
  • S66.499A Other specified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter
  • S66.499D Other specified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, subsequent encounter
  • S66.499S Other specified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, sequela
  • S66.5 Injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand levelNon-billable
  • S66.50 Unspecified injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand levelNon-billable
  • S66.500 Unspecified injury of intrinsic muscle, fascia and tendon of right index finger at wrist and hand levelNon-billable
  • S66.500A Unspecified injury of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level, initial encounter
  • S66.500D Unspecified injury of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level, subsequent encounter
  • S66.500S Unspecified injury of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level, sequela
  • S66.501 Unspecified injury of intrinsic muscle, fascia and tendon of left index finger at wrist and hand levelNon-billable
  • S66.501A Unspecified injury of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level, initial encounter
  • S66.501D Unspecified injury of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter
  • S66.501S Unspecified injury of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level, sequela
  • S66.502 Unspecified injury of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand levelNon-billable
  • S66.502A Unspecified injury of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level, initial encounter
  • S66.502D Unspecified injury of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level, subsequent encounter
  • S66.502S Unspecified injury of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level, sequela
  • S66.503 Unspecified injury of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand levelNon-billable
  • S66.503A Unspecified injury of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level, initial encounter
  • S66.503D Unspecified injury of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level, subsequent encounter
  • S66.503S Unspecified injury of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level, sequela
  • S66.504 Unspecified injury of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand levelNon-billable
  • S66.504A Unspecified injury of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level, initial encounter
  • S66.504D Unspecified injury of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level, subsequent encounter
  • S66.504S Unspecified injury of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level, sequela
  • S66.505 Unspecified injury of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand levelNon-billable
  • S66.505A Unspecified injury of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level, initial encounter
  • S66.505D Unspecified injury of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level, subsequent encounter
  • S66.505S Unspecified injury of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level, sequela
  • S66.506 Unspecified injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand levelNon-billable
  • S66.506A Unspecified injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, initial encounter
  • S66.506D Unspecified injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, subsequent encounter
  • S66.506S Unspecified injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, sequela
  • S66.507 Unspecified injury of intrinsic muscle, fascia and tendon of left little finger at wrist and hand levelNon-billable
  • S66.507A Unspecified injury of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter
  • S66.507D Unspecified injury of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level, subsequent encounter
  • S66.507S Unspecified injury of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level, sequela
  • S66.508 Unspecified injury of intrinsic muscle, fascia and tendon of other finger at wrist and hand levelNon-billable
  • S66.508A Unspecified injury of intrinsic muscle, fascia and tendon of other finger at wrist and hand level, initial encounter
  • S66.508D Unspecified injury of intrinsic muscle, fascia and tendon of other finger at wrist and hand level, subsequent encounter
  • S66.508S Unspecified injury of intrinsic muscle, fascia and tendon of other finger at wrist and hand level, sequela
  • S66.509 Unspecified injury of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand levelNon-billable
  • S66.509A Unspecified injury of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounter
  • S66.509D Unspecified injury of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounter
  • S66.509S Unspecified injury of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela
  • S66.51 Strain of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand levelNon-billable
  • S66.510 Strain of intrinsic muscle, fascia and tendon of right index finger at wrist and hand levelNon-billable
  • S66.510A Strain of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level, initial encounter
  • S66.510D Strain of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level, subsequent encounter
  • S66.510S Strain of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level, sequela
  • S66.511 Strain of intrinsic muscle, fascia and tendon of left index finger at wrist and hand levelNon-billable
  • S66.511A Strain of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level, initial encounter
  • S66.511D Strain of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter
  • S66.511S Strain of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level, sequela
  • S66.512 Strain of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand levelNon-billable
  • S66.512A Strain of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level, initial encounter
  • S66.512D Strain of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level, subsequent encounter
  • S66.512S Strain of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level, sequela
  • S66.513 Strain of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand levelNon-billable
  • S66.513A Strain of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level, initial encounter
  • S66.513D Strain of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level, subsequent encounter
  • S66.513S Strain of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level, sequela
  • S66.514 Strain of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand levelNon-billable
  • S66.514A Strain of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level, initial encounter
  • S66.514D Strain of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level, subsequent encounter
  • S66.514S Strain of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level, sequela
  • S66.515 Strain of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand levelNon-billable
  • S66.515A Strain of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level, initial encounter
  • S66.515D Strain of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level, subsequent encounter
  • S66.515S Strain of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level, sequela
  • S66.516 Strain of intrinsic muscle, fascia and tendon of right little finger at wrist and hand levelNon-billable
  • S66.516A Strain of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, initial encounter
  • S66.516D Strain of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, subsequent encounter
  • S66.516S Strain of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, sequela
  • S66.517 Strain of intrinsic muscle, fascia and tendon of left little finger at wrist and hand levelNon-billable
  • S66.517A Strain of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter
  • S66.517D Strain of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level, subsequent encounter
  • S66.517S Strain of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level, sequela
  • S66.518 Strain of intrinsic muscle, fascia and tendon of other finger at wrist and hand levelNon-billable
  • S66.518A Strain of intrinsic muscle, fascia and tendon of other finger at wrist and hand level, initial encounter
  • S66.518D Strain of intrinsic muscle, fascia and tendon of other finger at wrist and hand level, subsequent encounter
  • S66.518S Strain of intrinsic muscle, fascia and tendon of other finger at wrist and hand level, sequela
  • S66.519 Strain of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand levelNon-billable
  • S66.519A Strain of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounter
  • S66.519D Strain of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounter
  • S66.519S Strain of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela
  • S66.52 Laceration of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand levelNon-billable
  • S66.520 Laceration of intrinsic muscle, fascia and tendon of right index finger at wrist and hand levelNon-billable
  • S66.520A Laceration of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level, initial encounter
  • S66.520D Laceration of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level, subsequent encounter
  • S66.520S Laceration of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level, sequela
  • S66.521 Laceration of intrinsic muscle, fascia and tendon of left index finger at wrist and hand levelNon-billable
  • S66.521A Laceration of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level, initial encounter
  • S66.521D Laceration of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter
  • S66.521S Laceration of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level, sequela
  • S66.522 Laceration of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand levelNon-billable
  • S66.522A Laceration of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level, initial encounter
  • S66.522D Laceration of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level, subsequent encounter
  • S66.522S Laceration of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level, sequela
  • S66.523 Laceration of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand levelNon-billable
  • S66.523A Laceration of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level, initial encounter
  • S66.523D Laceration of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level, subsequent encounter
  • S66.523S Laceration of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level, sequela
  • S66.524 Laceration of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand levelNon-billable
  • S66.524A Laceration of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level, initial encounter
  • S66.524D Laceration of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level, subsequent encounter
  • S66.524S Laceration of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level, sequela
  • S66.525 Laceration of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand levelNon-billable
  • S66.525A Laceration of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level, initial encounter
  • S66.525D Laceration of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level, subsequent encounter
  • S66.525S Laceration of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level, sequela
  • S66.526 Laceration of intrinsic muscle, fascia and tendon of right little finger at wrist and hand levelNon-billable
  • S66.526A Laceration of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, initial encounter
  • S66.526D Laceration of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, subsequent encounter
  • S66.526S Laceration of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, sequela
  • S66.527 Laceration of intrinsic muscle, fascia and tendon of left little finger at wrist and hand levelNon-billable
  • S66.527A Laceration of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter
  • S66.527D Laceration of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level, subsequent encounter
  • S66.527S Laceration of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level, sequela
  • S66.528 Laceration of intrinsic muscle, fascia and tendon of other finger at wrist and hand levelNon-billable
  • S66.528A Laceration of intrinsic muscle, fascia and tendon of other finger at wrist and hand level, initial encounter
  • S66.528D Laceration of intrinsic muscle, fascia and tendon of other finger at wrist and hand level, subsequent encounter
  • S66.528S Laceration of intrinsic muscle, fascia and tendon of other finger at wrist and hand level, sequela
  • S66.529 Laceration of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand levelNon-billable
  • S66.529A Laceration of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounter
  • S66.529D Laceration of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounter
  • S66.529S Laceration of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela
  • S66.59 Other injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand levelNon-billable
  • S66.590 Other injury of intrinsic muscle, fascia and tendon of right index finger at wrist and hand levelNon-billable
  • S66.590A Other injury of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level, initial encounter
  • S66.590D Other injury of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level, subsequent encounter
  • S66.590S Other injury of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level, sequela
  • S66.591 Other injury of intrinsic muscle, fascia and tendon of left index finger at wrist and hand levelNon-billable
  • S66.591A Other injury of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level, initial encounter
  • S66.591D Other injury of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter
  • S66.591S Other injury of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level, sequela
  • S66.592 Other injury of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand levelNon-billable
  • S66.592A Other injury of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level, initial encounter
  • S66.592D Other injury of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level, subsequent encounter
  • S66.592S Other injury of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level, sequela
  • S66.593 Other injury of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand levelNon-billable
  • S66.593A Other injury of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level, initial encounter
  • S66.593D Other injury of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level, subsequent encounter
  • S66.593S Other injury of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level, sequela
  • S66.594 Other injury of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand levelNon-billable
  • S66.594A Other injury of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level, initial encounter
  • S66.594D Other injury of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level, subsequent encounter
  • S66.594S Other injury of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level, sequela
  • S66.595 Other injury of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand levelNon-billable
  • S66.595A Other injury of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level, initial encounter
  • S66.595D Other injury of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level, subsequent encounter
  • S66.595S Other injury of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level, sequela
  • S66.596 Other injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand levelNon-billable
  • S66.596A Other injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, initial encounter
  • S66.596D Other injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, subsequent encounter
  • S66.596S Other injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level, sequela
  • S66.597 Other injury of intrinsic muscle, fascia and tendon of left little finger at wrist and hand levelNon-billable
  • S66.597A Other injury of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter
  • S66.597D Other injury of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level, subsequent encounter
  • S66.597S Other injury of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level, sequela
  • S66.598 Other injury of intrinsic muscle, fascia and tendon of other finger at wrist and hand levelNon-billable
  • S66.598A Other injury of intrinsic muscle, fascia and tendon of other finger at wrist and hand level, initial encounter
  • S66.598D Other injury of intrinsic muscle, fascia and tendon of other finger at wrist and hand level, subsequent encounter
  • S66.598S Other injury of intrinsic muscle, fascia and tendon of other finger at wrist and hand level, sequela
  • S66.599 Other injury of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand levelNon-billable
  • S66.599A Other injury of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounter
  • S66.599D Other injury of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounter
  • S66.599S Other injury of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela
  • S66.8 Injury of other specified muscles, fascia and tendons at wrist and hand levelNon-billable
  • S66.80 Unspecified injury of other specified muscles, fascia and tendons at wrist and hand levelNon-billable
  • S66.801 Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, right handNon-billable
  • S66.801A Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, right hand, initial encounter
  • S66.801D Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, right hand, subsequent encounter
  • S66.801S Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, right hand, sequela
  • S66.802 Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, left handNon-billable
  • S66.802A Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, left hand, initial encounter
  • S66.802D Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, left hand, subsequent encounter
  • S66.802S Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, left hand, sequela
  • S66.809 Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified handNon-billable
  • S66.809A Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, initial encounter
  • S66.809D Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, subsequent encounter
  • S66.809S Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, sequela
  • S66.81 Strain of other specified muscles, fascia and tendons at wrist and hand levelNon-billable
  • S66.811 Strain of other specified muscles, fascia and tendons at wrist and hand level, right handNon-billable
  • S66.811A Strain of other specified muscles, fascia and tendons at wrist and hand level, right hand, initial encounter
  • S66.811D Strain of other specified muscles, fascia and tendons at wrist and hand level, right hand, subsequent encounter
  • S66.811S Strain of other specified muscles, fascia and tendons at wrist and hand level, right hand, sequela
  • S66.812 Strain of other specified muscles, fascia and tendons at wrist and hand level, left handNon-billable
  • S66.812A Strain of other specified muscles, fascia and tendons at wrist and hand level, left hand, initial encounter
  • S66.812D Strain of other specified muscles, fascia and tendons at wrist and hand level, left hand, subsequent encounter
  • S66.812S Strain of other specified muscles, fascia and tendons at wrist and hand level, left hand, sequela
  • S66.819 Strain of other specified muscles, fascia and tendons at wrist and hand level, unspecified handNon-billable
  • S66.819A Strain of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, initial encounter
  • S66.819D Strain of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, subsequent encounter
  • S66.819S Strain of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, sequela
  • S66.82 Laceration of other specified muscles, fascia and tendons at wrist and hand levelNon-billable
  • S66.821 Laceration of other specified muscles, fascia and tendons at wrist and hand level, right handNon-billable
  • S66.821A Laceration of other specified muscles, fascia and tendons at wrist and hand level, right hand, initial encounter
  • S66.821D Laceration of other specified muscles, fascia and tendons at wrist and hand level, right hand, subsequent encounter
  • S66.821S Laceration of other specified muscles, fascia and tendons at wrist and hand level, right hand, sequela
  • S66.822 Laceration of other specified muscles, fascia and tendons at wrist and hand level, left handNon-billable
  • S66.822A Laceration of other specified muscles, fascia and tendons at wrist and hand level, left hand, initial encounter
  • S66.822D Laceration of other specified muscles, fascia and tendons at wrist and hand level, left hand, subsequent encounter
  • S66.822S Laceration of other specified muscles, fascia and tendons at wrist and hand level, left hand, sequela
  • S66.829 Laceration of other specified muscles, fascia and tendons at wrist and hand level, unspecified handNon-billable
  • S66.829A Laceration of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, initial encounter
  • S66.829D Laceration of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, subsequent encounter
  • S66.829S Laceration of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, sequela
  • S66.89 Other injury of other specified muscles, fascia and tendons at wrist and hand levelNon-billable
  • S66.891 Other injury of other specified muscles, fascia and tendons at wrist and hand level, right handNon-billable
  • S66.891A Other injury of other specified muscles, fascia and tendons at wrist and hand level, right hand, initial encounter
  • S66.891D Other injury of other specified muscles, fascia and tendons at wrist and hand level, right hand, subsequent encounter
  • S66.891S Other injury of other specified muscles, fascia and tendons at wrist and hand level, right hand, sequela
  • S66.892 Other injury of other specified muscles, fascia and tendons at wrist and hand level, left handNon-billable
  • S66.892A Other injury of other specified muscles, fascia and tendons at wrist and hand level, left hand, initial encounter
  • S66.892D Other injury of other specified muscles, fascia and tendons at wrist and hand level, left hand, subsequent encounter
  • S66.892S Other injury of other specified muscles, fascia and tendons at wrist and hand level, left hand, sequela
  • S66.899 Other injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified handNon-billable
  • S66.899A Other injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, initial encounter
  • S66.899D Other injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, subsequent encounter
  • S66.899S Other injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, sequela
  • S66.9 Injury of unspecified muscle, fascia and tendon at wrist and hand levelNon-billable
  • S66.90 Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand levelNon-billable
  • S66.901 Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, right handNon-billable
  • S66.901A Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand, initial encounter
  • S66.901D Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand, subsequent encounter
  • S66.901S Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand, sequela
  • S66.902 Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, left handNon-billable
  • S66.902A Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, left hand, initial encounter
  • S66.902D Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, left hand, subsequent encounter
  • S66.902S Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, left hand, sequela
  • S66.909 Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, unspecified handNon-billable
  • S66.909A Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand, initial encounter
  • S66.909D Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand, subsequent encounter
  • S66.909S Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand, sequela
  • S66.91 Strain of unspecified muscle, fascia and tendon at wrist and hand levelNon-billable
  • S66.911 Strain of unspecified muscle, fascia and tendon at wrist and hand level, right handNon-billable
  • S66.911A Strain of unspecified muscle, fascia and tendon at wrist and hand level, right hand, initial encounter
  • S66.911D Strain of unspecified muscle, fascia and tendon at wrist and hand level, right hand, subsequent encounter
  • S66.911S Strain of unspecified muscle, fascia and tendon at wrist and hand level, right hand, sequela
  • S66.912 Strain of unspecified muscle, fascia and tendon at wrist and hand level, left handNon-billable
  • S66.912A Strain of unspecified muscle, fascia and tendon at wrist and hand level, left hand, initial encounter
  • S66.912D Strain of unspecified muscle, fascia and tendon at wrist and hand level, left hand, subsequent encounter
  • S66.912S Strain of unspecified muscle, fascia and tendon at wrist and hand level, left hand, sequela
  • S66.919 Strain of unspecified muscle, fascia and tendon at wrist and hand level, unspecified handNon-billable
  • S66.919A Strain of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand, initial encounter
  • S66.919D Strain of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand, subsequent encounter
  • S66.919S Strain of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand, sequela
  • S66.92 Laceration of unspecified muscle, fascia and tendon at wrist and hand levelNon-billable
  • S66.921 Laceration of unspecified muscle, fascia and tendon at wrist and hand level, right handNon-billable
  • S66.921A Laceration of unspecified muscle, fascia and tendon at wrist and hand level, right hand, initial encounter
  • S66.921D Laceration of unspecified muscle, fascia and tendon at wrist and hand level, right hand, subsequent encounter
  • S66.921S Laceration of unspecified muscle, fascia and tendon at wrist and hand level, right hand, sequela
  • S66.922 Laceration of unspecified muscle, fascia and tendon at wrist and hand level, left handNon-billable
  • S66.922A Laceration of unspecified muscle, fascia and tendon at wrist and hand level, left hand, initial encounter
  • S66.922D Laceration of unspecified muscle, fascia and tendon at wrist and hand level, left hand, subsequent encounter
  • S66.922S Laceration of unspecified muscle, fascia and tendon at wrist and hand level, left hand, sequela
  • S66.929 Laceration of unspecified muscle, fascia and tendon at wrist and hand level, unspecified handNon-billable
  • S66.929A Laceration of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand, initial encounter
  • S66.929D Laceration of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand, subsequent encounter
  • S66.929S Laceration of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand, sequela
  • S66.99 Other injury of unspecified muscle, fascia and tendon at wrist and hand levelNon-billable
  • S66.991 Other injury of unspecified muscle, fascia and tendon at wrist and hand level, right handNon-billable
  • S66.991A Other injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand, initial encounter
  • S66.991D Other injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand, subsequent encounter
  • S66.991S Other injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand, sequela
  • S66.992 Other injury of unspecified muscle, fascia and tendon at wrist and hand level, left handNon-billable
  • S66.992A Other injury of unspecified muscle, fascia and tendon at wrist and hand level, left hand, initial encounter
  • S66.992D Other injury of unspecified muscle, fascia and tendon at wrist and hand level, left hand, subsequent encounter
  • S66.992S Other injury of unspecified muscle, fascia and tendon at wrist and hand level, left hand, sequela
  • S66.999 Other injury of unspecified muscle, fascia and tendon at wrist and hand level, unspecified handNon-billable
  • S66.999A Other injury of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand, initial encounter
  • S66.999D Other injury of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand, subsequent encounter
  • S66.999S Other injury of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand, sequela

About the S66 Code Range

ICD-10 code section S66 addresses injuries affecting the muscles, fascia, and tendons specifically at the wrist and hand level. This collection of codes covers a range of traumatic conditions including strains, lacerations, unspecified injuries, and other specified damages to flexor, extensor, intrinsic, or other muscles and tendons of individual fingers and thumbs.

The codes under S66 are used to classify detailed injuries such as strains (overstretching or tearing), lacerations (cuts), and other forms of damage to muscles, fascia, and tendons in the wrist and hand region. For example, S66.019 includes strains commonly known as "injury of tendon at forearm level" or "strain of flexor pollicis longus tendon." Similarly, S66.209 corresponds to unspecified injuries that may be called "rupture of extensor tendon of thumb" or "mallet thumb." Other ICD-10 codes specify laterality (right, left, or unspecified) and the encounter type (initial, subsequent, or sequela), aiding precise tracking of treatment stages. These codes help medical coders identify exact conditions such as "traumatic division of flexor tendon of hand" or "bowstringing of tendon, wrist or hand," facilitating accurate documentation and billing.

Questions About This Page

How many billable codes are in the S66 range?

Of the 761 codes in this range, 540 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.

What does the S66 range classify?

The range classifies injury of muscle, fascia and tendon at wrist and hand level. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

All ICD-10-CM ChaptersAll of Chapter 19ICD-10-CM Code LookupMS-DRG ReferenceMedicare Code EditsPOA Exempt Codes

Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.